Hitachi Chemical Company, Ltd.

Shigeshi Ohno

Yoshii Morishita

Satoyuki Nomura

Tooru Tanaka

Osamu Higashida

Hitoshi Yamazaki

Michio Ogawa

Toshiaki Chiba

There is provided a light control film having two transparent electroconductive resin substrates; and a light control layer sandwiched between the two transparent electroconductive resin substrates, the light control layer containing; a resin matrix; and a light control suspension dispersed in the resin matrix, wherein at least one of the transparent electroconductive resin substrates has, on the light control layer side thereof, a primer layer, and the primer layer is made of a thin film in which metal oxide fine particles are dispersed in an organic binder resin. The light control film may have the function improving adhesion between the film matrix and each substrates and performing stable light control function.

Light control film

Disclosed is a light control film comprising: two transparent electroconductive resin substrates; and a light control layer sandwiched between the two transparent electroconductive resin substrates, the light control layer comprising: a resin matrix; and a light control suspension dispersed in the resin matrix, wherein at least one of the transparent electroconductive resin substrates has, on the light control layer side thereof, a primer layer, and the primer layer is made of a thin film comprising a material containing a (meth)acrylate having, in the molecule thereof, a hydroxyl group. Thus, it is possible to provide a light control film that improves the adhesion between a film matrix and a substrate, and that achieves a stable light control function.

Disclosed is a light control film, comprising: two transparent electroconductive resin substrates; and a light control layer sandwiched between the two transparent electroconductive resin substrates, the light control layer comprising: a resin matrix; and a light control suspension dispersed in the resin matrix, wherein at least one of the transparent electroconductive resin substrates has, on the light control layer side thereof, a primer layer, and the primer layer is made of a thin film comprising a material containing a urethane acrylate containing a pentaerythritol skeleton. Thus, it is possible to provide a light control film that improves the adhesion between a film matrix and a substrate, and that achieves a stable light control function.

A method for producing a light-modulating film in which a light-modulating layer is sandwiched between two transparent resin substrates, the light-modulating layer being formed by use of a light-modulating material containing: a polymeric medium for forming a resin matrix; and a light-modulating suspension, includes the following steps: step (a) of applying the light-modulating material to one (a first transparent resin substrate: of the transparent resin substrates; step (b) of bonding the other transparent resin substrate (a second transparent resin substrate) onto the light-modulating material applied to the first transparent resin substrate; and step (c) of irradiating the light-modulating material sandwiched between the first transparent resin substrate and the second transparent resin substrate with an energy ray to cure the polymeric medium for forming the resin matrix contained in the light-modulating material, thereby forming the light-modulating layer to yield the light-modulating film.

Method for producing light-modulating film and light-modulating film

The present invention relates to a light control film, comprising:

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Chikusei, Japan

Shigeshi Ohno